<?php

namespace ServiceSdk\Utils\Validator;

/**
 * Class IdcardAction 身份证相关信息校验
 * Author: Bililovy
 */
class IdCard
{
    /**
     * Description: 根据身份证等获取星座
     *
     * @param string $idCard 身份证号
     *
     * @return string
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:51
     */
    public static function xinZuo(string $idCard): string
    {
        // 根据身份证号，自动返回对应的星座
        if ( ! self::isIdCard($idCard)) {
            return '';
        }
        $bir = substr($idCard, 10, 4);
        $month = (int)substr($bir, 0, 2);
        $day = (int)substr($bir, 2);
        $strValue = '';
        if (($month == 1 && $day >= 20) || ($month == 2 && $day <= 18)) {
            $strValue = "水瓶座";
        } else if (($month == 2 && $day >= 19) || ($month == 3 && $day <= 20)) {
            $strValue = "双鱼座";
        } else if (($month == 3 && $day > 20) || ($month == 4 && $day <= 19)) {
            $strValue = "白羊座";
        } else if (($month == 4 && $day >= 20) || ($month == 5 && $day <= 20)) {
            $strValue = "金牛座";
        } else if (($month == 5 && $day >= 21) || ($month == 6 && $day <= 21)) {
            $strValue = "双子座";
        } else if (($month == 6 && $day > 21) || ($month == 7 && $day <= 22)) {
            $strValue = "巨蟹座";
        } else if (($month == 7 && $day > 22) || ($month == 8 && $day <= 22)) {
            $strValue = "狮子座";
        } else if (($month == 8 && $day >= 23) || ($month == 9 && $day <= 22)) {
            $strValue = "处女座";
        } else if (($month == 9 && $day >= 23) || ($month == 10 && $day <= 23)) {
            $strValue = "天秤座";
        } else if (($month == 10 && $day > 23) || ($month == 11 && $day <= 22)) {
            $strValue = "天蝎座";
        } else if (($month == 11 && $day > 22) || ($month == 12 && $day <= 21)) {
            $strValue = "射手座";
        } else if (($month == 12 && $day > 21) || ($month == 1 && $day <= 19)) {
            $strValue = "魔羯座";
        }

        return $strValue;
    }

    /**
     * Description: 根据身份证号获取生肖
     *
     * @param string $idCard
     *
     * @return string
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:53
     */
    public static function getShengXiao(string $idCard): string
    { //根据身份证号，自动返回对应的生肖
        if ( ! self::isIdCard($idCard)) {
            return '';
        }
        $start = 1901;
        $end = $end = (int)substr($idCard, 6, 4);
        $x = ($start - $end) % 12;
        $value = "";
        if ($x == 1 || $x == -11) {
            $value = "鼠";
        }
        if ($x == 0) {
            $value = "牛";
        }
        if ($x == 11 || $x == -1) {
            $value = "虎";
        }
        if ($x == 10 || $x == -2) {
            $value = "兔";
        }
        if ($x == 9 || $x == -3) {
            $value = "龙";
        }
        if ($x == 8 || $x == -4) {
            $value = "蛇";
        }
        if ($x == 7 || $x == -5) {
            $value = "马";
        }
        if ($x == 6 || $x == -6) {
            $value = "羊";
        }
        if ($x == 5 || $x == -7) {
            $value = "猴";
        }
        if ($x == 4 || $x == -8) {
            $value = "鸡";
        }
        if ($x == 3 || $x == -9) {
            $value = "狗";
        }
        if ($x == 2 || $x == -10) {
            $value = "猪";
        }

        return $value;
    }

    /**
     * Description: 根据身份证获取性别
     *
     * @param string $idCard
     *
     * @return string
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:54
     */
    public static function getSex(string $idCard): string
    { //根据身份证号，自动返回性别
        if ( ! self::isIdCard($idCard)) {
            return '';
        }
        $sexint = (int)substr($idCard, 16, 1);

        return $sexint % 2 === 0 ? '女' : '男';
    }

    /**
     * Description: 根据身份证号判断是否成年（大于等于18岁）
     *
     * @param string $idCard
     *
     * @return bool
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:54
     */
    public static function checkAdult(string $idCard): bool
    {//判断是否成年
        $year = substr($idCard, 6, 4);
        $big18 = $year + 18;
        $nowyear = date("Y", time());
        if ($big18 <= $nowyear) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * Description: 身份证号 15位到18位转换
     *
     * @param string $idCard
     *
     * @return string
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:57
     */
    public static function idCard15to18(string $idCard): string
    {//15到18转换
        if (strlen($idCard) != 15) {
            return false;
        } else {
            // 如果身份证顺序码是996 997 998 999，这些是为百岁以上老人的特殊编码
            if (array_search(substr($idCard, 12, 3), array ('996', '997', '998', '999')) !== false) {
                $idCard = substr($idCard, 0, 6) . '18' . substr($idCard, 6, 9);
            } else {
                $idCard = substr($idCard, 0, 6) . '19' . substr($idCard, 6, 9);
            }
        }

        $idCard = $idCard . self::idCardVerifyNumber($idCard);

        return $idCard;
    }

    /**
     * Description: 计算身份证号位数
     *
     * @param string $idCardBase
     *
     * @return string
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:58
     */
    private static function idCardVerifyNumber(string $idCardBase): string
    {
        if (strlen($idCardBase) != 17) {
            return false;
        }
        // 加权因子
        $factor = array (7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
        // 校验码对应值
        $verify_number_list = array ('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
        $checksum = 0;
        for ($i = 0; $i < strlen($idCardBase); $i++) {
            $checksum += substr($idCardBase, $i, 1) * $factor[ $i ];
        }

        $mod = $checksum % 11;
        $verify_number = $verify_number_list[ $mod ];

        return $verify_number;
    }

    /**
     * Description: 判断是否为正确的身份证号
     *
     * @param string $number
     *
     * @return bool
     * @Author: Bililovy
     * @Date  : 19-6-21 下午8:55
     */
    public static function isIdCard(string $number): bool
    {
        // 检查是否是身份证号
        // 转化为大写，如出现x
        $number = strtoupper($number);
        if (strlen($number) !== 18) {
            return false;
        }
        //加权因子
        $wi = array (7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);
        //校验码串
        $ai = array ('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
        //按顺序循环处理前17位
        $sigma = 0;
        for ($i = 0; $i < 17; $i++) {
            //提取前17位的其中一位，并将变量类型转为实数
            $b = (int)$number{$i};
            //提取相应的加权因子
            $w = $wi[ $i ];
            //把从身份证号码中提取的一位数字和加权因子相乘，并累加
            $sigma += $b * $w;
        }
        //计算序号
        $snumber = $sigma % 11;
        //按照序号从校验码串中提取相应的字符。
        $check_number = $ai[ $snumber ];
        if ($number{17} == $check_number) {
            return true;
        } else {
            return false;
        }
    }
}
